Approximately 4,400 gallons.
how many gallons of water does a swimming pool 15 feet by 4 feet deep hold
1795 gallons, if you fill it to the brim.
it also depends how wide it is
It is 30.6 cubic feet = 190.3 Imperial gallons.
'bout 1500 to 2000
A round swimming pool 12 feet across by 4 feet deep will hold 452 ft3 which converts to 3,381 gallons
You need to provide information on the area of the pool as well.
Depends on the depth. If it is 4 feet deep and it is cicular with a diameter of 24 feet then you have approx. 13,553 gallons of water. If it is 3 feet deep then you have approx. 10,152 gallons of water.
My swimming pool holds 1250 gallons. It is 12 feet diameter and 3 feet deep.